Question

It is possible for the STAB DEGRADED advisory indication to appear on the EICAS

display when an actuator physically fails to program as commanded. As long as the FCC
can identify the position of the failed actuator, the other FCC will continue to program its
actuator automatically, but in a ______________________.

Answer 1

When the STAB DEGRADED advisory indication appears on the EICAS display due to an actuator physically failing to program as commanded, the other FCC continues to program its actuator automatically but in a deferred mode.

Step-by-step explanation:

When the STAB DEGRADED advisory indication appears on the EICAS display due to an actuator physically failing to program as commanded in an aircraft, the other Flight Control Computer (FCC) continues to automatically program its actuator. However, it does so in a deferred mode.

In deferred mode, the FCC that identifies the position of the failed actuator sends commands to the remaining good actuators to compensate for the failure. This allows the aircraft to maintain control and stability despite the actuator failure.

During deferred mode, the FCC ensures that the remaining actuators operate correctly and that the aircraft remains within its flight envelope. It optimizes the performance of the remaining actuators to maintain control until repairs can be made.